Loose-leaf binder.



No. 819,368. PATENTED MAY 1, 1906 C. R. NELSON LOOSE LEAP BINDER.

APPLICATION FILED NOV. 30 1903.

- prongs or entra n s'rirrns CHARLES R. NELSON, OF

PATENT OFFICE.

CHICAGO, ILLINOIS. ASSlGNOR TO SIEBER mssounr.

LOOSE-LEAF BINDERu no. erases.

Specification of Letters I?atent.

Patented May 1, mos.

Application filed liqvembtr 30. 1903. Serial No 183,223.

To all whom it may concerrt:

Be it known that I, Cnannns R. NnLsoN, a citizen of the United States, and a resident of Chica o, county of Cook, and State of Illinois, have invented certain new and useful Im rovements in Loose-Leaf Binders, of which the following is a specification and which are illustrated in the accompanying drawings, forming a part thereof.

This invention relates to that class of looseleaf binders in which irrigating and binding rongs are employed for se ring the leaves etween a pair of book-covers, such prongs or hooks being pivoted so as to reciprocate transversely to the plane of the leaves.

The ob'ect of the invention is to improve upon devices of this kind which are articularl adapted for use in books ofsma 1 form, suc as pocket memoranda books, though it may be made of any size.

The invention consists in the arts and arran ement of parts, as hereina ter fully descri ed and as illustrated in the accompanyin drawings, in whichigure lie 9. detail transverse section on the line 1 1 of Fig. 5. Fig. 2 is a detail end elevation of the binder. Fig. 3 is a view similar to Fig. 1, with the parts in different position. Fig; 4 is a detail of one of the bindmg rongs or ooks. Fig. 5 is a plan view of the in'dmg mechanism, the cover not being shown. Fig. 6 is a detail of one of the parts. Fig. 7 is a detail longitudinal section showing a modified form of construction, and Fig. 8 is a sectional view on the line 8 Sci Fig. 7.

The base or su port for the binding mechanism is a metal p ate 10, the width of which is slightly less than the thickness of the book and the length of which is approximately e ual to the len th of the back of the book. T116 side edges 0% this plate are turned up, as shown at 11 12, and the extreme edges of these upturned flanges are rolled preferably inwardly to retain the wires 13 14, which constitute the pivots of the binding prongs or hooks 15 16, the flanges 11 12 being suitably apertured for their accommodation. These binding-hooks are approximately semicircular in form and are arranged in pairs, the members of each pair being in a common plane, so that their outer ends meet. The inner ends of these semicircular members are flattened and forked, as shown at 17, so that they may overlap and mutually enapproach or'recede.

gage the wrist 18 of a crankshaft 19, which is gournaled in upturned flanges 20 at the an s of the plate 10.

At one end of the shaft 19 there is mounted a thumb-piece 21, by means of which the shaft may be oscillated, and as'it. turns it rocks the members 15 16 on their pivots 13 1.4, so as to cause their outer ends to mutually members 15 16 are preferably complementary in form, as shown in Fig. 5, one being ointed, as indicated at 22, and the other bemg correspondin ly recessed, as shown at 23. The side boarfs 24 25 of the book have a lirn or hinged connection with the plate 10, as y means of a flexible back piece 26, secured to the plate and to the rear edges of the side boards.

In use the binding-hooks 15 16 are suported at their outer ends by turning the shaft 19 so as to raise the wrist 18 relatively as to the plate 10, thereby raising the inner ends of the hooks. The leaves to be bound (not shown) may now be engaged with the being again given a half-turn the bindinghooks are closed together and the leaves securely retained in place.

The device is capable of being made of any desired size, and the range of movement of the binding-hooks may be determined both by the location of the hinge-pins 13 and 14v relatively as to the shaft 19 and by the throw of the wrist 18 of the crank. The drawings are made upon a larger scale than will be followed when the binder is of pocket size. E

While the crank-shaft 19 is shown as in the form of a rod turned down to form cranks, it is obvious that a more bent wire may be used for this purpose.

In the construction shown in Figs 7 and 8 there is substituted for the crank-shaft 19' a sliding rod 27, having an inclined portion 28 for engaging the slotted ends of the hooks 15 and 16, this inclination extcndin Y upwardly from the back 10. The rod 27 slides throng i the lugs 20 at the ends of the plate 10 and is rcfcrably square at its bearing portions, asshown at 29, so as to prevent it from turning. At one end the rod 18 provided with an upstanding lug 30, b means of which it may .be drawn out, and the inclined portion 28 bearing away from this lug it is obvious that the drawing out of the rod will raise the inner hooks in the usual manner, and the shaft 19 The outer ends of the having its wrist portions engaged with the their pivots.

ends of the hooks, so as to swing them about I their pivots. The structure above described, l and i lustrated in Figs. 7 and 8, is not, however, specifically claimed herein, as it is made l the subject of a divisional application, Serial No. 239,405, filed January 3, 1905.

I claim as my invcntion 1. In a loose-leaf binder, in combination, a back frame; binding-hooks pivoted to the frame intermediate oi their ends and havin their inner ends slotted; and a crank-r0 mounted longitudinally upon the frame and engaging the slotted ends of the hooks.

2. In a loose-leaf binder, in combination, a back frame; binding-hookspivoted to the frame, one thereof being pivoted intermediate of its ends and having its inner end slotted; and a crank-rod mounted longitudinally u on the frame and engaging the slotted end 0 the hook. I

3. In a loose-leaf binder, in combination, a back plate having upturned sides and ends, cooperating binding-hooks pivoted to the sides thereof and having their outer'ends arranged to close together and their inner ends overla iping and slotted; and a crank-shaft journalcd in the ends of the back plate and slots of the bindinghooks.

4. In a loose-leaf binder, in combination, a back frame: two sets of hooks, each hook being pivoted to the frame adjacent the 'side thereof so as to swing in the plane of its curvature and having its inner end extending across the frame in the .',).t1ll( of the body of the hook; and a rod mounted longitudinally upon the frame and opt-ratively engaging the hooks by a cam action to swing them on 5. n a loose-leaf binder, in combination, a back frame; cooperating hooks pivoted at the opposite sides of the frame so as to swing each in the plane of its curvature and having overlap )ing inner ends; and a. rod mounted longitudinally on the frame and operativelv engaging the hooks by a cam action to rock them on their pivots.

6. In a loose-leafbinder, in combination, a back frame; side membershinged thereto; co- 0 mrating-hooks pivoted at the opposite sides of the frame and independent of the side "members of the binder, so as to swing in the lane of their curvature, and having overlapping inner ends; and a rod mounted lon-.

gltudinally on the frame and operatively engaging the hooks to rock them on their pivots.

7. A binder of the character described having a backbone, a pivoted leaf-engaging finger or prong thereon and a crank for manipulatin the same, said crank being loosely associated with said finger andada ted to assume a dead-center position in cit 1er of two arrangements of the parts to lock the finger open or closed.

8. A binderof the characterdescribed comprising a backbone, a plurality of airs of pivoted fingers thereon-oppositely rispose'd to constitute rings, and a corresponding num ber of cranks one engaging each pairof fingers for simultaneously manipulating the fingers of the respective pairs.

9. A binderof the character described cornprising a backbone, a plurality of pairs of pivoted fingers thereon oppositelydisposed to constitute rings, and a corresponding number of cranks one engaging each pair of fingers for manipulating the fingers of the respective airs.

p 10. A binder of the character described comprising a backbone, a plura-litv of pairs of pivoted fingers thereon opposite y disposed to constitute rings, and a corresponding nu mber of cranks for manipulating the fingers of the respective pairs, one of said cranks being loosely associated with its air of fingers and adapted to assume a dead center position relative thereto.

11. In combination with a channel member, leaf-engaging lingers pivoted intermediate their ends to the flanges of said member, and means in engagement with the inner ends of said fingers and shiftable transversely of the channel members for manipulating the same. v

12. Abinder of the characterdescribed having a backbone, a pair of pivoted lingers thereon oppositely disposed to constitute a ring, and a crank for positively shifting said fingers said crank being loosely associated with said lingers and adapted to assume a dead-center position in either of two arrangements of the parts to lock the fingers open or closed.

[3. A binder of the character described having a backbone, a pair of pivoted fingers thereon oppositely disposed to constitute a ring, and a crank shif table in the direction of opening of the leaves for opening and closing said fingers.

14. In a loose-leaf binder, in combination, a hook, means for pivot-ally supporting the SWING, said hook ha ving a slot-ted portion, and a crank-rod engaging said slotted portion to shift the hook on its ivot.

15. A. binder of the characterdescribed', comprising a backbone, a )lurality of movable lea f-engaging fin ers thereon, and a corresponding number o cranks for manipulat eratively associated with its finger to assume a dead-center position relative thereto.

CHARLES R; NELSON. i/Vitncsses:

Lotus K. (mason, l6. M. KLA'IC1[ER.

ing said fingers. one of said cranks being,0p- 

